I take the good ol' fashioned method of memorizing as much of the rules as is required to educate new converts and efficicient hand-waving / arbitrating of the gray areas on the off chance anyone questions them. I look at the rules about two or three times a year, to inspire myself with the Brikwars mentality more than relearn the rules.

Still, a mass-produced printed copy would be an excellent endeavor, especially if it meant introducing a new horde of players to the field.

Looked nice
Had a lot of margin space for writing your own rules
A CD that included the rules and some stat card templates
The formulas Rayhawk uses to make the weapons balanced and things so making up your own weapons was easier

Looked niceHad a lot of margin space for writing your own rulesA CD that included the rules and some stat card templatesThe formulas Rayhawk uses to make the weapons balanced and things so making up your own weapons was easier